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The young bark of the Shumard oak is light gray, very smooth, and very reflective. Shumard oak bark darkens and develops ridges and furrows as it ages. Occasionally, white splotches are seen on the bark. [6] Shumard oak twigs terminate in a cluster of buds. The buds are lighter in color than the olive-green twigs. The young twig is highly ...
The reason it happens is because bark is a dead tissue that can’t expand as a tree’s trunk grows larger. All it can do is pop off in pieces and fall to the ground.
The disease is characterised by the trees bleeding or oozing a dark fluid from small lesions or splits in their bark. [1] Unlike chronic oak decline, acute oak decline can lead to the death of trees within 4 to 5 years of symptoms appearing. The number of trees affected is thought to number in the low thousands, with a higher number of infected ...
Slime flux, also known as bacterial slime or bacterial wetwood, is a bacterial disease of certain trees, primarily elm, cottonwood, poplar, boxelder, ash, aspen, fruitless mulberry and oak. A wound to the bark, caused by pruning, insects, poor branch angles or natural cracks and splits, causes sap to ooze from the wound. Bacteria may infect ...
Sunscald of trunks that have thin bark. This is extremely common on Shumard red oaks, red maples, and Chinese pistachios, as well as a few other species. ... gouge the bark off a tree’s trunk ...
At the top of that list, I’d put Shumard red oak (colorful many years in the fall) and Chinese pistachios (colorful almost every year). Sweet gums are good annually in acidic soils (primarily ...
Aleurodiscus oakesii is a cluster of small, gray-white, irregular cup-shaped saprotrophic fungi that grows on decaying hardwood tree bark. This fungus may also be called hophornbeam discs, [1] and it causes smooth patch disease. A. oakesii is found year round in North America, Europe, and Asia and is commonly found on oak trees.
For the past 30 years I’ve boiled my list of recommended large shade trees for North Central Texas down to seven: live oak, Shumard red oak, Chinquapin oak, bur oak, pecan, cedar elm and Chinese ...